APA (7th ed.) Citation

Cox, P. R., & Hellard, S. Mystery mansion. Usborne Publishers.

Chicago Style (17th ed.) Citation

Cox, Phil Roxbee, and Sue Hellard. Mystery Mansion. UK: Usborne Publishers.

MLA (9th ed.) Citation

Cox, Phil Roxbee, and Sue Hellard. Mystery Mansion. Usborne Publishers.

Warning: These citations may not always be 100% accurate.